Hi, Impala dev, I am working on Jira IMPALA-5440 <https://issues.apache.org/jira/browse/IMPALA-5440> and one of the problem is to test that Impala will handle cardinality overflow when there are multiple children under EXCHANGE node. I searched among the examples of .test file and could not find one. I was wondering if anyone has experience running such queries? Thanks!
Xinran
